1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Quantum efficiency of GaN photocathode under different illumination
Rent:
Rent this article for
USD
10.1063/1.3614555
/content/aip/journal/apl/99/4/10.1063/1.3614555
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/4/10.1063/1.3614555

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Structure of GaN photocathode samples. The GaN layer of sample 1 is 150 nm and sample 2 is 600 nm. Hall Effect measurements indicate the p-type concentration of sample 1 is 1.6 × 1017 cm−3 and sample 2 is 5.0 × 1017 cm−3 at room temperature, respectively.

Image of FIG. 2.
FIG. 2.

(Color online) Photocurrent curves of the samples during the activation. Curve 1 (a), (b), and (c) is the photocurrent of sample 1 illuminated by the deuterium lamp, 70 μW 300 nm monochromatic light, and 35 μW 300 nm monochromatic light, curve 2 (a), (b), and (c) is the photocurrent of sample 2 illuminated by the deuterium lamp, 70 μW 300 nm monochromatic light, and 35 μW 300 nm monochromatic light, respectively.

Image of FIG. 3.
FIG. 3.

(Color online) QE of the NEA GaN photocathodes. Curve 1 (a), (b), and (c) is the QE of sample 1 illuminated by the deuterium lamp, 70 μW 300 nm monochromatic light, and 35 μW 300 nm monochromatic light, curve 2(a), (b), and (c) is the QE of sample 2 illuminated by the deuterium lamp, 70 μW 300 nm monochromatic light, and 35 μW 300 nm monochromatic light, respectively.

Image of FIG. 4.
FIG. 4.

Variation of QE curves for GaAs photocathodes under illumination.29

Tables

Generic image for table
Table I.

Maximum QE of the NEA GaN photocathodes.

Loading

Article metrics loading...

/content/aip/journal/apl/99/4/10.1063/1.3614555
2011-07-26
2014-04-24
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Quantum efficiency of GaN photocathode under different illumination
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/4/10.1063/1.3614555
10.1063/1.3614555
SEARCH_EXPAND_ITEM